.arrow {
	margin-left: 10px;
}

.username {
    margin-top: 0 !important;
    background-color: rgba(20, 25,35,0.1);
}

// 防止穿透点击
.mask {
    position: fixed;
    top: 0;
    bottom: 0;
    right: 0;
    left: 0;
    z-index: 999998;
}
// 侧边栏
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    right: 0;
    left: 50%;
    z-index: 999999;
    background-color: white;
    box-shadow: 0px 0px 0px 2000px rgba(20,25,35,0.7);
}